Castles are the powerhouses that dot across our islands. History Hit’s Matt Lewis discovers Irish castles, from ancient high points to Norman keeps to medieval citadels.
Ardal O’Hanlon explores a 1930s quest to find the first Irish men and women using archaeology, answering his deepest questions about what it means to be Irish.
Three-part documentary series in which anthropologist professor Alice Roberts and archaeologist Neil Oliver go in search of the Celts - one of the world's most mysterious ancient civilisations.